Vitamin C-induced CO₂ capture enables high-rate ethylene production in CO₂ electroreduction.

ABSTRACT: High-rate production of multicarbon chemicals via the electrochemical CO₂ reduction can be achieved by efficient CO₂ mass transport. A key challenge for C-C coupling in high-current-density CO₂ reduction is how to promote *CO formation and dimerization. Here, we report molecularly enhanced CO₂-to-*CO conversion and *CO dimerization for high-rate ethylene production. Nanoconfinement of ascorbic acid by graphene quantum dots enables immobilization and redox reversibility of ascorbic acid in heterogeneous electrocatalysts. Cu nanowire with ascorbic acid nanoconfined by graphene quantum dots (cAA-CuNW) demonstrates high-rate ethylene production with a Faradaic efficiency of 60.7% and a partial current density of 539 mA/cm², a 2.9-fold impr

SUBMITTER: Kim J 

PROVIDER: S-EPMC10762245 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature